Apple may still be king in the tablet world, but Amazon appears to be having a good chance of meeting the iPad head-to-head in terms of sales.

According to CNet, Morgan Keegan analyst Tavis McCourt has lowered his shipment estimates of the iPad from 16 million to 13 million units for the month of December. Subsequently, McCourt has also reduced his estimated iPad sales by 1 million to 2 million units during the month as well. The main reason, he asserts, is that the Amazon tablet has sold more throughout the holiday season than initially thought.

“Based on data from Amazon, we believe the Amazon Fire likely sold 4 [million to] 5 million units this holiday season,” wrote Tavis McCourt to CNet. “We expect iPad revenues to generate 21.3 percent of revenues in the December quarter for Apple, up from 17.2 percent in the year-ago period, although down from 24.3 percent in the previous quarter.”

Earlier last week, Amazon vaunted the success of its Kindle series through a press release with claims such as a one million per week selling rate. The $199 price point may be the target number to get users interested in tablets if the Kindle Fire is any proof. Catch our review on this Amazon tablet before the end of this week.